The Bilstein B6 24-003971 is a rear replacement shock absorber catalogued for the 1979 Saab 900 EMS, and it uses a monotube damper design. Buyers replacing a tired rear damper on this model are choosing a Bilstein-branded part built for this specific application rather than a universal shock, which matters when rear ride control has drifted. Monotube construction keeps the damping components in a single tube, a layout enthusiasts often prefer for consistent response during repeated hard use.
Published fitment ranges for this damper differ across listings, so confirm that your exact Saab 900 matches the 1979 EMS application with the manufacturer before ordering. Rear shock replacement on these cars is a practical job for a home mechanic with a jack, stands, and basic hand tools, but the manufacturer's installation documentation should be checked for the correct hardware and torque figures. Search terms this part matches include Bilstein B6 rear shock 24-003971, 1979 Saab 900 EMS rear monotube shock, Saab 900 EMS rear damper replacement, and Bilstein B6 Saab 900 rear monotube.